MacDon R85, Руководство оператора

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4 Operating the Header
Your header will provide the best performance when it is properly adjusted to suit the crop and conditions.
Correct operation reduces crop loss and increases productivity. As well, proper adjustments and timely maintenance
will increase the length of service you receive from the machine.
The variables listed below and detailed on the following pages will affect the performance of the header. You will
quickly become familiar with adjusting the machine to give you the desired results. Most of the adjustments have
been set at the factory, but if desired, the settings can be changed to suit crop conditions.
Table 4.1 Header Adjustment Procedures
Variable Refer to
Header fl oat
4.1 Header Float, page 73
Roll gap
4.2 Roll Gap, page 75
Roll tension
4.3 Roll Tension, page 78
Roll timing
4.4 Roll Timing, page 79
Forming shields
4.5 Forming Shields, page 81
Header angle
4.6 Header Angle, page 85
Cutting height
4.7 Cutting Height, page 86
Ground speed
4.9 Ground Speed, page 88
Double windrowing
4.10 Double Windrowing, page 89
4.1 Header Float
Header fl oat springs are normally set so 422–467 N (95–105 lbf) of force is required to lift the header at either end.
In rough or stony conditions, it may be desirable to maintain a lighter setting to protect cutting components.
When fl oat setting is light, it may be necessary to use a slower ground speed to avoid excessive bouncing resulting
in a ragged cut. Faster ground speeds may require additional ground pressure.
Up to three—user de fi ned— fl oat positions can be stored in the windrower's control system. For information on
setting fl oat, refer to the Float Options topic in the windrower operator's manual.
4.1.1 Checking Float
DANGER
To avoid bodily injury or death from unexpected startup of the machine, always stop the engine and remove
the key from the ignition before leaving the operator’s seat for any reason.
1. Lower the header until lift cylinders are fully retracted.
2. Stop the engine and remove the key.
3. Grasp the front corner of the header and lift. The force to lift should be 426–471 N (95–105 lbf) and should be
approximately the same at both ends. If adjustment is required, refer to
4.1.2 Adjusting Float, page 74
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